WARSAW, Poland (AP) — A Swedish bus drove into a ditch in southwestern Poland Friday, injuring seven people including four Swedes and an American teenager.

Slawomir Masojc, spokesman for the police in Legnica, told The Associated Press that two people — the American and a driver — were taken by helicopter to a hospital in the city of Wroclaw. Five others were taken by ambulances to a hospital in Legnica.

The Swedish Foreign Ministry said four of the injured were Swedes aged 15 to 20.

Masojc said the accident happened before 9 a.m. The bus, carrying 26 people — mostly teenagers as well as two drivers and the group's leader — drove off the road and fell on its side into a grassy ditch near the town of Legnickie Pole.

He said they are musicians headed for a concert in Slovakia. The uninjured were accommodated in a local hotel.